want to fly indoors, compass errors

I have been trying to fly indoors, but keep getting a compass calibration error. what is the best way to fly indoors in a building with lots of electrical and metal, would disconnecting the compass be the best way, I do not need gps hold, or opti hold, only atti mode.

I have been trying to fly indoors, but keep getting a compass calibration error. what is the best way to fly indoors in a building with lots of electrical and metal, would disconnecting the compass be the best way, I do not need gps hold, or opti hold, only atti mode.